Ac-VDVAD-AFC is a fluorogenic substrate whose amino acids VDVAD have been shown to be a preferred cleavage site for caspase-2.1,2 Caspase activity can be quantified by fluorescent detection of free AFC (also known as 7-amino-4-trifluoromethylcoumarin), which is excited at 400 nm and emits at 505 nm. Increases in Ac-VDVAD-AFC cleavage have been reported to correlate with nitric oxide-induced activation of caspase-2 and subsequent apoptosis in human neuroblastoma lines.1
Product Description References
1. Moriya, R., Uehara, T., and Nomura, Y. Mechanism of nitric oxide-induced apoptosis in human neuroblastoma SH-SY5Y cells. FEBS Lett. 484(3), 253-260 (2000).
2. Talanian, R.V., Quinlan, C., Trautz, S., et al. Substrate specificities of caspase family proteases. The Journal of Biological Chemisty 272(15), 9677-9682 (1997).
